I've tried about a dozen different bluetooth headphones. I'm a truck driver, and needed something that I could hear over a yard full of diesel engines, or with the window down on the Interstate.
I've been using a Blue Parrot B-250 XT (upgrading to a B-250 XT+) for years now. At top volume it's too loud, no jamming an earpiece into my head shouting "WHAT DID YOU SAY?" and I've been standing between two revving engines having a phone conversation and the person on the other end could hear me fine. The XT has 16 hours of talk time (not standby, TALK!) and the XT+ has 20 hours of talk time, and has an AD2P profile for music.
It's not pretty, or small. You'll look like you're either getting ready to ask "Do you want fries with that?" or go onstage with Garth Brooks. But if you want to have an easy conversation on the phone that both of you can hear, haven't found anything better yet. Best price I've found is usually on Amazon, something like $80 for the XT+